PrayerMatthew 6:16-18

Fasting and Prayer: A Biblical Guide to Seeking God

Worshippers praying outdoors at night during a vigil at Adoration New Life Ministry, Aiyepe
In short

Biblical fasting is voluntarily going without food, or another good thing, for a season in order to seek God more earnestly. Jesus assumed His followers would fast (Matthew 6:16-18). It is not a way to force God's hand, but a way to humble ourselves, sharpen our focus and make space for prayer.

Few spiritual disciplines are as misunderstood as fasting. To some it sounds extreme, a practice for super-spiritual people only. To others it sounds like a spiritual bargaining chip: "If I fast long enough, God will give me what I want." Others simply find it uncomfortable and avoid thinking about it at all.

Yet fasting appears throughout the Bible, from Moses and David to Esther, Daniel, Anna, Paul, and Jesus Himself. It is one of the quiet but powerful ways God's people have sought Him through the centuries. In this guide we will look at what fasting is, what the Bible says about it, the right and wrong motives, different types of fasts, a practical way to begin, and cautions for health. Our aim is to help you approach fasting with understanding, wisdom, and joy.

What is fasting?

In Scripture, to fast generally means to abstain from food, and in some cases from drink, for a period of time, in order to give oneself to prayer and seeking God. The Hebrew word most often used (tsom) refers to abstaining from food, and the New Testament Greek word (nesteuo) means the same: "to abstain from food."

At its heart, fasting says: "I need You more than I need food." It is a physical expression of spiritual hunger. When we deliberately set aside something we normally depend on, we create room to depend more on God.

Fasting is not starving yourself, punishing yourself, or impressing God. It is a voluntary, humble, prayerful setting aside of something good, so that we can give attention to the Giver.

Did Jesus expect His followers to fast?

Yes. In the Sermon on the Mount, Jesus taught about giving, praying, and fasting, and in each case He used the same phrase: "when". "When thou doest thine alms" (Matthew 6:2), "when thou prayest" (6:5), and "Moreover when ye fast" (6:16). He assumed His disciples would fast, just as He assumed they would give and pray.

He went on to say, "Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward. But thou, when thou fastest, anoint thine head, and wash thy face; That thou appear not unto men to fast, but unto thy Father which is in secret: and thy Father, which seeth in secret, shall reward thee openly" (Matthew 6:16-18).

Notice the emphasis: fasting is before the Father, not before people. Its purpose is not to be seen, but to seek.

Later, when asked why His disciples did not fast while John's disciples did, Jesus answered, "Can the children of the bridechamber mourn, as long as the bridegroom is with them? but the days will come, when the bridegroom shall be taken from them, and then shall they fast" (Matthew 9:15). After His ascension, the early church fasted.

Jesus Himself fasted forty days and nights in the wilderness before beginning His public ministry (Matthew 4:1-2), and He overcame the tempter with Scripture.

Biblical examples of fasting

The Bible shows many reasons people fasted.

To seek guidance and direction. Ezra proclaimed a fast "that we might afflict ourselves before our God, to seek of him a right way for us, and for our little ones, and for all our substance" (Ezra 8:21). In Antioch, "As they ministered to the Lord, and fasted, the Holy Ghost said, Separate me Barnabas and Saul for the work whereunto I have called them. And when they had fasted and prayed, and laid their hands on them, they sent them away" (Acts 13:2-3). Paul and Barnabas also "prayed with fasting" when appointing elders (Acts 14:23).

To seek deliverance and protection. When Queen Esther faced the threat of her people's destruction, she said, "Go, gather together all the Jews that are present in Shushan, and fast ye for me, and neither eat nor drink three days, night or day: I also and my maidens will fast likewise; and so will I go in unto the king" (Esther 4:16). God turned the situation around.

To repent and return to God. "Therefore also now, saith the LORD, turn ye even to me with all your heart, and with fasting, and with weeping, and with mourning: And rend your heart, and not your garments, and turn unto the LORD your God: for he is gracious and merciful" (Joel 2:12-13). The people of Nineveh fasted and repented at Jonah's preaching, "and God repented of the evil, that he had said that he would do unto them" (Jonah 3:5-10).

To grieve and intercede. David fasted and prayed for his sick child (2 Samuel 12:16). Nehemiah fasted and mourned over Jerusalem's ruined walls (Nehemiah 1:4). Daniel sought God with fasting for his people (Daniel 9:3).

To worship and serve. The prophetess Anna "departed not from the temple, but served God with fastings and prayers night and day" (Luke 2:37).

To prepare for ministry. Jesus' forty-day fast prepared Him for the work that lay ahead.

The pattern is clear: when God's people needed Him urgently, or longed for Him deeply, they fasted.

What does God say about the right kind of fast?

In Isaiah 58, God confronts people who fasted outwardly but lived unjustly. They asked, "Wherefore have we fasted, say they, and thou seest not?" God replied that they fasted while exploiting workers and quarrelling. Then He described the fast He wants: "Is not this the fast that I have chosen? to loose the bands of wickedness, to undo the heavy burdens, and to let the oppressed go free, and that ye break every yoke? Is it not to deal thy bread to the hungry, and that thou bring the poor that are cast out to thy house? when thou seest the naked, that thou cover him; and that thou hide not thyself from thine own flesh?" (Isaiah 58:6-7).

The lesson is profound: true fasting is joined to true righteousness and compassion. Skipping meals while ignoring the needy, harbouring bitterness, or living in unrepentant sin misses the point. Genuine fasting should make us more humble, more generous, more just, and more loving.

Then God promised blessing to those who fast rightly: "Then shall thy light break forth as the morning, and thine health shall spring forth speedily: and thy righteousness shall go before thee; the glory of the LORD shall be thy rereward" (Isaiah 58:8).

Why fast? The purposes of fasting

Understanding the why protects us from misusing the practice.

1. To humble ourselves. "I humbled my soul with fasting" (Psalm 35:13). Fasting reminds us that we are creatures who depend on God for everything.

2. To increase spiritual sensitivity. When we step back from the noise of appetite and distraction, it can become easier to hear God.

3. To intensify prayer. Fasting and prayer are partners. The time we would spend eating or preparing food can be given to prayer and Scripture.

4. To express repentance and mourning. It helps us take sin seriously and turn back to God.

5. To seek God's direction. Major decisions are often accompanied by fasting in the Bible.

6. To stand in intercession. For family, church, nation, and the lost.

7. To discipline the body and strengthen self-control. Paul speaks of keeping the body under (1 Corinthians 9:27). Learning to say no to the stomach can strengthen our ability to say no to sin.

8. To break strongholds. Jesus said of one kind of demonic oppression, "This kind can come forth by nothing, but by prayer and fasting" (Mark 9:29, in some manuscripts). Spiritual warfare is real, though we should always keep our focus on God, not on the enemy.

Fasting is not a way to manipulate God

It is important to say what fasting is not. Fasting is not a tool to twist God's arm. We do not earn answers by suffering. God is not impressed by our hunger pangs. He is gracious, and He responds to faith and humility.

Zechariah challenged people who fasted without sincerity: "Did ye at all fast unto me, even to me?" (Zechariah 7:5). Jesus criticised the Pharisee who boasted, "I fast twice in the week" while his heart remained proud (Luke 18:12).

Fasting changes us. We trust God with the outcome. Sometimes He answers as we hope; sometimes He answers differently. Either way, we come away knowing Him better.

Different types of fasts

The Bible describes several approaches to fasting, and Christians through the centuries have used various forms.

  • Normal fast: abstaining from food, but drinking water. Jesus' fast in Luke 4:2 implies He ate nothing ("he did eat nothing"), and Matthew 4 says He was afterward hungry, which suggests water was available.
  • Absolute fast: abstaining from both food and water. This is rare in the Bible (Esther 4:16; Acts 9:9) and lasted only a short time, such as three days. It is physically dangerous and should not be undertaken lightly, and never without medical wisdom.
  • Partial fast: limiting certain foods. Daniel, for example, ate "no pleasant bread, neither came flesh nor wine in my mouth" for three weeks (Daniel 10:2-3).
  • Time-limited fast: for example, from morning until 3 PM, or from sunrise to sunset.
  • Fasting from other things: for people who cannot fast from food, such as those with medical conditions, it can be meaningful to fast from social media, television, entertainment, or other habits for a set time, using that time for prayer.

Whatever form you choose, the heart of the fast is seeking God.

How to begin: a simple, safe approach

If you have never fasted, begin gently. Here is a practical path:

1. Decide your purpose

Ask, "Why am I fasting?" Perhaps for guidance on a decision, for your family, for your church, for repentance, or simply to draw nearer to God. Write it down.

2. Choose a duration and a type

For a first fast, you might skip a single meal, or fast from breakfast until the early afternoon. You can gradually try a full day and, later, longer periods if you are healthy and it is wise.

3. Prepare

  • Pray beforehand and ask God to lead you.
  • Reduce heavy eating the day before.
  • Reconcile with anyone you have offended, as far as possible.
  • Plan to spend time in prayer and the Word during mealtimes.

4. During the fast

  • Drink plenty of water (unless fasting under special circumstances).
  • Spend time in prayer, Scripture reading, and worship.
  • Keep a journal of what God shows you.
  • Keep your normal responsibilities; do not make a show of it (Matthew 6:17-18).
  • Be gentle with yourself. If you feel faint or unwell, stop and eat something. Fasting should not harm you.

5. Break the fast wisely

Do not break a fast with a huge or heavy meal. Start with light food, such as fruit, soup, or porridge, and gradually return to normal eating, especially after longer fasts.

6. Follow through

Act on what God has said to you. Give thanks for what He has done. Continue the habit of prayer and Scripture.

Cautions and wisdom

Health matters. Your body is "the temple of the Holy Ghost" (1 Corinthians 6:19). People who are pregnant or nursing, children, those with diabetes, heart disease, eating disorders, or other medical conditions, and those on regular medication should consult a doctor before fasting from food. They can still fast in other meaningful ways.

Avoid extremes. Long fasts are not "more spiritual" than short ones. Do not compete or compare. The Bible emphasises sincerity, not endurance records.

Avoid legalism. Do not make rules where Scripture is silent. Fasting is a voluntary discipline of love, not a law.

Avoid pride. Do not announce your fast or look gloomy. Jesus asked us to keep it between ourselves and the Father (Matthew 6:16-18). There are times when a church fasts together publicly (as in Joel 2:15-16), and that is different from personal showmanship.

Be considerate. If you are a spouse, parent, or employee, consider others. Paul speaks of marriage partners agreeing on seasons of prayer (1 Corinthians 7:5).

Keep Christ at the centre. The point of fasting is to know Jesus better, not to prove your discipline.

Common mistakes

  1. Fasting without praying. Without prayer, it is merely dieting.
  2. Fasting for the wrong reasons. To impress people, to manipulate God, or purely to lose weight.
  3. Forgetting compassion. Isaiah 58 links fasting with justice and generosity.
  4. Breaking the fast badly. Overeating can make you ill.
  5. Giving up after one failure. If you break a fast early, do not despair. Simply begin again.
  6. Expecting fireworks. Sometimes the fruit of fasting is quiet: greater peace, clearer direction, softer heart. Do not look only for dramatic experiences.

Fasting and the church

Fasting is not only an individual discipline; the church has fasted together throughout history. Joel called the people to "Sanctify ye a fast, call a solemn assembly" (Joel 2:15). The church at Antioch fasted together (Acts 13:2). Corporate fasting unites a congregation in a common burden and a common hunger for God.

At Adoration New Life Ministry, prayer is at the centre of our life. We gather for a Monday Prayer Meeting, a Wednesday Hour of Mercy, and a Month-End Night Vigil on the last Friday of every month from 10:00 PM. Many believers combine fasting with these gatherings. If you want to learn more about our rhythm of prayer, read about our Night Vigil or plan a visit.

After the fast: staying hungry for God

The goal of fasting is not a temporary spiritual high. It is a lasting change of heart. As you return to eating normally, keep your appetite for God. Keep reading, keep praying, keep obeying. Let the spiritual hunger you felt carry over into daily life.

Jesus said, "Blessed are they which do hunger and thirst after righteousness: for they shall be filled" (Matthew 5:6). God honours a hungry heart. Whether or not you fast from food, may you never stop hungering for Him.

A prayer before you fast

Father, I want to seek You more earnestly. Teach me what it means to fast in a way that pleases You. Keep me humble, protect my health, and fill me with a hunger for Your presence. Search my heart, forgive my sin, and show me what You want me to see. Help me to love You and to love my neighbour. May this season draw me closer to Jesus. In His name I pray, Amen.

If you would like prayer as you seek God, you can send us your prayer request, and we will stand with you.

Frequently asked questions

What is biblical fasting?

Biblical fasting is abstaining from food, and sometimes drink, for a period of time in order to devote oneself to prayer and seek God. It is always joined to prayer and humility, never done as a show for others.

Is fasting required for Christians?

The New Testament does not give a fixed schedule, but Jesus said "when ye fast" (Matthew 6:16), assuming His followers would. Fasting is a voluntary spiritual discipline, not a law that earns salvation.

How long should I fast?

There is no set length. Beginners can start with skipping one meal or fasting from morning until afternoon, then increase gradually. Longer fasts should be approached carefully, with wisdom and, where necessary, medical advice.

Who should not fast from food?

People who are pregnant or breastfeeding, those with diabetes or other medical conditions, children, and anyone on medication that must be taken with food should consult a doctor first. They can fast from other things, such as entertainment or social media.

Does fasting make God answer prayer?

Fasting does not force God to act. It changes us by humbling us and focusing our hearts. God answers according to His wisdom and will, and we trust Him with the outcome.

Share this articleWhatsAppFacebookX
← All articles